Watermill
device · 300 BC · Ancient world
A mill whose millstones are turned by a water wheel.
What it is made of
- Water wheel — has part. A water wheel drives the mill’s mechanism.
- Millstone — has part. The wheel turns the millstones.
- Gear — has part. Gears carry rotation from the horizontal shaft to the millstone.
Principles and materials it uses
- Wood — is made of. A watermill is a wooden mechanism.
What it is a kind of
- Gristmill — is a kind of. A classic watermill grinds grain.
Things built in a similar way
- Windmill — works like. The same mill, but with a different source of energy.